meyer



(No M0881.)

EE. MEYER.

FRICTION CLUTCH.

`No. 288,008. Patented Aug 14, 1888.

INVENTO j MAQ f ATTOENEYS WITNESSES N4 PETERS Phoxo-uxhgmphan washinglm,I: C.

` 2o ing the same.

w av, Flg. l; and Fig. Lijs a similar view on linej,

. UNITED STATESv PATENT OFFICE.

'JoHAnNEs E. ifrEYEE, or corENnAGEN, DENMARK.

AFRlcTlotIoLu-roH. l

srEcrFrcArroN forming part of Letters Patent" No. 283,009, dated august14, i883. Application filed April 17, 1883.Y -(No model.)

.To` a@ whom it may concern;

Beit known that I, JonANNEs EENsr MEYER, a citizen of Denmark, residingat Copenhagen,

in the Kingdom of Denmark, have invented` certain new and usefulImproveinentsin Frio# tion-Clutches; and` I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which itappertains to1o make and use the same, reference being had to theaccompanyingdrawings, and to the letters and figures of reference markedthereon, whlch form a partof this specication, and in which A Figure lisa longitudinal sectional view of a vertical shaft provided with myimproved friction-clutch. Fig. 2 is a similar view of a horizontal shaftprovided with the same, with a slight modification in the manner ofattach- Fig. 3 is a cross-section on line 'y y, Fig. 2. y

Slmilar letters of reference indicate corresponding parts in all thegures.

` Myinventionhas relation to friction-clutches adapted to connect and tocommunicate motion from one rotated shaft to another, and itcontemplates certain improvements upon a clutch actuated by centrifugalforce, and particularly 3o adapted to couple that portion of the shaftof a4 centrifugal machine or other machine driven at high speed whichreceives its rotation from the motive power to that .portion to whichthe rotation is to be imparted, and it consists to 35 that end in theimproved constructionv and combination of parts of such aclutch, ashereinafter more fully described and claimed.

-In Figs. l and 3 of the accompanying drawings is` shown the manner ofattaching the Y 4o clutch upon a vertical shaft, which I will proceed todescribe, the` construction shownin .Figs 2 and 4c being substantiallythe same,4

. y 5o verted conical bearings D, and the drive-pul ley is fastened atthe point where the bases of through the same,while its upper edge isprovided with an inward-bent flange, I, which fits close around sleeveB, above theY notches, ex-

cluding all dust and dirt from the clutch. It

will now be seen that as the sleeve B is rotated, the blocks G will beforced outward by the centrifugal force and press with their headsagainst the inside of the cylindricalbox H, and when, as the sleeverotates, the centrifthe blocks upon the inner surface of the box becomesproportionally greater, rotating the box and the shaft with it, rstslowly, and gradually increasing, yso that it will be seen that thesleeve may be set in motion at high speed, and the shaft will firstgradually assume the same speed, and it will likewise be i seen that ifthe sleeve is suddenly stopped `the blocks will recede from pressingagainst the inside of the box, and the box and shaft will continuerotating, gradually slackening in speed until their momentumlis spent.

In Figs. 2 and 4 the motive power is imparted to a shaft,J, forming` acontinuation of shaft C, but separate from it, and the sleeve B isreduced in length, and keyed or otherwise fastened to shaft J, while theT-shaped blocks and box H are of the same construction, and

performthe same functions as in the construc= l Ation shown in Figs. 1and 3.

If desired, springs may be inserted inside the shanks of the T-shapedblocks, which will cause the same to bear harder against the inside ofthe cylindrical box in starting;`but

s theiraction will be overcome by the centrifugal power, when alargeramount` of speed is obtained, when the springs will be forcedoutward, only acting by their weight, until in stopping the springs and`blocks will recede,

i the two cones adjoin, and may be made in one The lower -is fastened tothe 'shaft C, which passes up ugal force becomes stronger, the frictionof when the former, pressing the latter outward,

f will cause them to vact as brakes in gradually stopping therevolutions of axle C and its cylindrical box.

Having thus described my invention, 'I claim and desire to secure byLetters Patent of thc United Statesf l. A friction-clutch consisting ofa series of T- shaped blocks, the outersurfaces of the heads of whichform parts of a cylinder-sun face, sliding with their shanks in radialnotches or recesses in a rotating sleeve or shaft, and a cylindrical boxor easing fastened upon the shaft to be rotated, and inclosing andsurrounding the blocks, as and for the purpose shown and set forth.

2. The clutch consisting of the rotating sleeve B, turning on shaft C,and having radial notches or recesses E at its lower end, blocks G, theshanks F of which slide in the Said recesses, having outerbearing-surfaces forming parts of a cylinder-surface, and cylindricalbox H, fastened upon shaft C, as and for v the purpose shown and setforth.

3. The combination of the rotating sleeve B, having radial recesses E,T-shaped blocks G, the heads of which form partsof a cylindersurface,and shaft C, having cylindrical box H, having inwardly-bent annularflange I, as and for the purpose shown and set forth.

4. The combination of the double conical sleeve B, turning .upon shaft GinI inverted conical bearings D, having drive-pulley A, and radialnotches or `recesses E at its lower end, T-shaped blocks G, and shaft C,having cylindrical box H, as and for the purpose shown and set forth.

In testimony whereof I have hereunto affixed my signature in presencelof two witnesses.

ALBERT KINDERMANN, EMIL HANSEN.

